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1 /* m- file for Mips machines.
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2 Copyright (C) 1987, 1992 Free Software Foundation, Inc.
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3
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4 This file is part of GNU Emacs.
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5
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6 GNU Emacs is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 GNU Emacs is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: FSF 19.31. */
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22
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23 /* The following line tells the configuration script what sort of
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24 operating system this machine is likely to run.
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25 USUAL-OPSYS="note"
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26
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27 NOTE-START
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28 Use m-mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world.
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29 Note that the proper m- file for the Decstation is m-pmax.h.
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30 NOTE-END */
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31
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32 /* Define WORD_MACHINE if addresses and such have
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33 * to be corrected before they can be used as byte counts. */
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34
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35 #undef WORD_MACHINE
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36
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37 /* Define how to take a char and sign-extend into an int.
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38 On machines where char is signed, this is a no-op. */
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39
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40 #define SIGN_EXTEND_CHAR(c) ((signed char)(c))
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41
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42 /* Now define a symbol for the cpu type, if your compiler
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43 does not define it automatically:
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44 Ones defined so far include vax, m68000, ns16000, pyramid,
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45 orion, tahoe, APOLLO and many others */
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46 #ifndef mips
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47 # define mips
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48 #endif
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49
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50 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
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51 the bit field into an int. In other words, if bit fields
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52 are always unsigned.
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53
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54 If you use NO_UNION_TYPE, this flag does not matter. */
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55
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56 #define EXPLICIT_SIGN_EXTEND
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57
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58 /* Data type of load average, as read out of kmem. */
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59
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60 #define LOAD_AVE_TYPE long
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61
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62 /* Convert that into an integer that is 100 for a load average of 1.0 */
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63
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64 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0)
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65
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398
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66 #ifndef linux
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0
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67 /* CDC EP/IX 1.4.3 uses /unix */
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68
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69 #undef KERNEL_FILE
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70 #define KERNEL_FILE "/unix"
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398
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71 #endif /* ! linux */
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72
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73 /* Define CANNOT_DUMP on machines where unexec does not work.
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74 Then the function dump-emacs will not be defined
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75 and temacs will do (load "loadup") automatically unless told otherwise. */
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76
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77 #undef CANNOT_DUMP
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78
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79 /* Define VIRT_ADDR_VARIES if the virtual addresses of
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80 pure and impure space as loaded can vary, and even their
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81 relative order cannot be relied on.
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82
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83 Otherwise Emacs assumes that text space precedes data space,
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84 numerically. */
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85
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86 /* #define VIRT_ADDR_VARIES */
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87
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88 /* Define C_ALLOCA if this machine does not support a true alloca
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89 and the one written in C should be used instead.
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90 Define HAVE_ALLOCA to say that the system provides a properly
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91 working alloca function and it should be used.
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92 Define neither one if an assembler-language alloca
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93 in the file alloca.s should be used. */
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94
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95 #ifdef __GNUC__
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96 #define HAVE_ALLOCA
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97 #else
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98 #define C_ALLOCA
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99 #endif
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100
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101 /* Define NO_REMAP if memory segmentation makes it not work well
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102 to change the boundary between the text section and data section
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103 when Emacs is dumped. If you define this, the preloaded Lisp
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104 code will not be sharable; but that's better than failing completely. */
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105
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106 #define NO_REMAP
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107
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108 /* This machine requires completely different unexec code
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109 which lives in a separate file. Specify the file name. */
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110
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398
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111 #ifndef linux
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163
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112 #define UNEXEC "unexmips.o"
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398
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113 #endif /* !linux */
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0
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114 /* Describe layout of the address space in an executing process. */
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115
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398
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116 #ifdef linux
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117 #define TEXT_START 0x00400000
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118 #define DATA_START 0x10000000
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119 #define DATA_SEG_BITS 0x10000000
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120 #else /* !linux */
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121 #define TEXT_START 0x400000
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122 #define DATA_START 0x800000
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398
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123 #endif /* linux */
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124
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125 /* Alter some of the options used when linking. */
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126
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398
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127 #if !defined(NEWSOS5) && !defined(linux)
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128 #ifdef BSD
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129
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163
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130 /* DECstations don't have this library. */
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131 /* #define LIBS_MACHINE "-lmld" */
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0
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132
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163
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133 #define LD_SWITCH_MACHINE "-D 800000"
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134 #define LIBS_DEBUG
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135
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163
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136 #define LINKER "/bsd43/bin/ld"
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0
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137
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138 #else /* not BSD */
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139
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173
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140 #undef LIBS_MACHINE
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163
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141 #define LD_SWITCH_MACHINE "-D 800000 -g3"
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142 #define START_FILES "pre-crt0.o /usr/lib/crt1.o"
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143 #define LIB_STANDARD "-lbsd -lc /usr/lib/crtn.o"
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144 #define LIBS_TERMCAP "-lcurses"
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0
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145
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163
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146 #define C_SWITCH_MACHINE "-I/usr/include/bsd"
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147 #define C_DEBUG_SWITCH "-O -g3"
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0
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148
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149 #endif /* not BSD */
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398
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150 #endif /* !NEWSOS5 && !linux */
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151
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398
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152 #if !defined(NEWSOS5) && !defined(linux)
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0
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153 #ifdef USG
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154
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155 /* Don't try to use SIGIO even though it is defined. */
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156 #define BROKEN_SIGIO
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157
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158 /* Describe special kernel features. */
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159
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160 #if defined(emacs) && !defined(INHIBIT_BSD_TIME)
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161 #include <bsd/sys/time.h>
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162 #endif
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163
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164 /* The `select' in the system won't work for pipes, so don't use it. */
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165 #undef HAVE_SELECT /* override configuration decision */
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166
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167 #define HAVE_PTYS
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168
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169 /* ??? */
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170 #define IRIS
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171
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172 #endif /* USG */
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173
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174 #ifdef BSD
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175 #define COFF
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176 #define TERMINFO
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177 #undef MAIL_USE_FLOCK /* Someone should check this. */
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178 #endif /* BSD */
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398
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179 #endif /* !NEWSOS5 && !linux */
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